function js_method(){
	$.ajax({
		type:'get',
		url:'showFilm.do',
		success: function (data){
			var str = JSON.parse(data);
			Object.keys(str).forEach(function(key){
				var kkk = str[key];
				for(var i = 0;i<kkk.length;i++){
					console.log(kkk[i].filmId+"-->"+kkk[i].filmName)
					var performer = kkk[i].performers;
					for(var j = 0;j<performer.length;j++){
						console.log(performer[j].perName)
					}
				}
			})
		}
	});
}